Add Agentic Workflow option to PR template

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: brunoborges

.github/pull_request_template.md

@@ -1,10 +1,10 @@
 ## Pull Request Checklist
 
 - [ ] I have read and followed the [CONTRIBUTING.md](https://github.com/github/awesome-copilot/blob/main/CONTRIBUTING.md) guidelines.
-- [ ] My contribution adds a new instruction, prompt, agent, or skill file in the correct directory.
+- [ ] My contribution adds a new instruction, prompt, agent, skill, or workflow file in the correct directory.
 - [ ] The file follows the required naming convention.
 - [ ] The content is clearly structured and follows the example format.
-- [ ] I have tested my instructions, prompt, agent, or skill with GitHub Copilot.
+- [ ] I have tested my instructions, prompt, agent, skill, or workflow with GitHub Copilot.
 - [ ] I have run `npm start` and verified that `README.md` is up to date.
 
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@@ -22,7 +22,8 @@
 - [ ] New agent file.
 - [ ] New plugin.
 - [ ] New skill file.
-- [ ] Update to existing instruction, prompt, agent, plugin, or skill.
+- [ ] New agentic workflow.
+- [ ] Update to existing instruction, prompt, agent, plugin, skill, or workflow.
 - [ ] Other (please specify):
 
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